Introduction
What is web scraping?
- Web scraping is a method of extracting and collecting data from websites to retrieve specific information.
- In our world of secondary research, it can significantly reduce the amount of time taken to gather data, thus offering a competitive advantage to companies like Wonder.
- A website containing thousands of entries in a list would require hundreds of hours to scrape manually. However, using web scraping tools, this could potentially be done in minutes.
How web scraping works
While a lot of technicalities go into how web scraping works, here is a simple breakdown of the main steps:
- Visit Website: Just like you open a website in your browser.
- Read Content: The tool reads the website's code (HTML & JavaScript).
- Find Data: It looks for and identifies the specific data you want.
- Collect Data: The desired data is then pulled from the website.
- Save Data: The tool saves this data in a file or database for you.
How do web scraping tools make it easier?
- User-Friendly: Point-and-click interfaces let you choose data without coding.
- Automate Tasks: Set it once, and it can scrape many pages or sites.
- Handles Complex Sites: Even if websites use lots of dynamic content, tools can still get the data.
- Clean Data: They can filter and organize the data for you.
- Avoid Blocks: Some tools can work around website barriers like CAPTCHAs or logins.
- Export to a spreadsheet or Google Sheet.
Why does it matter to master these tools?